What separates Caller ID Faker from the rest is that it is completely Free.
When you place a call, you will hear a 10-second advertisement then your call will be connected. Calls are also limited to 2 minutes, and after 2 minutes your call will disconnect. There is no limit as to how many Free 2 minute calls you can make. You can upgrade inside the application to a Premium Plan that has no advertisements, and can make calls longer than 2 minutes.

When you place a call the app will close and your phone will dial a local access number. If there is not a local access number in your area code available it will choose a number that is closes to you. If you have a free long distance plan then you will incur no extra charges other than minutes used from your wireless plan.